Spinning bobbin



E. BECK SPINNING BOBBIN May 7, 1935.

In ven for By Attorneys I gag UNITED STATES PATENT OFFICE SPINNING BOBBIN Ernst Beck, Bitterfeld, Germany, assignor to I. G.

Farbenindustrie Aktiengesellschatt, Frankforton-the-Main, Germany Application October 21, 1931, Serial No. 570,211

In Germany December 1, 1930 1 Claim. (Cl. 242-118) My present invention relates to flanged bob- Fig. 1 shows a front view of my new bobbin, bins. Difliculties arise in unwinding yarn over partially in section, and Fig. 2 shows a plan view the top of a flanged bobbin if the shaft and the of my new bobbin. 4 flange differ much indiameter. The unwinding Fig. 1 shows a flanged bobbin, the upper flange i of the thread is much impeded by the friction at of which consists of two parts, the ring f havthe upper flange of the bobbin, when there are ing been removed. The spindle a has a bore 9, still but a few layers of yarn on the'bobbin. a lower flange b, and an upper flange c, .f. The

My invention consists in a flanged bobbin, one detachable ring I is attached by a screw thread r b th flan s f w h mp s one or m (as shown in Fig. 1) a bayonet-catch or the like 10 detachable rings permitting reduction of the di- 8 t t flange c and is maced on a polished pad 10 ameter o the upper fla w en he thread as d. When the yarn has been unwound to such an b in p drawn extent that the ring f may be removed, the

Bobbins having flanges detachable as a whole thread glides against, t pad d, g Y

v a dy been described; the essence of this The flanges of the bobbin may consist of two invention, however, is the composite nature of more parts, They may be made from wood, t e fia metal, artificial materials or the like. They may In Ord r to protect the running thread it has also be made from different materials; Thus the als n p p s d t fit e; l d w h e s th y shaft and the 1ower flange may be made, for in polished border Over the pp flange, before stance, from wood, and the upper flange, con- 20 winding ofi the thread from the flanged bobbin sisting of veral parts, may be made from vu1- 20 Set p t canized flber or from metal.

A bobbin according to this invention has w t 1 1m 1 fla g which consist of rings fitted tegether- A flanged bobbin, at ,least one flange of said Th Outer periphery each ring s Polished in bobbin comprising at least two rings having pol- 25 order to reduce as much as possible the friction ished outer peripheries and fitted within one 25 O the t d against np e another, the outer rings being detachable from An example of such a bobbin is illustrated in the inner ring, for the purpose described.

the accompanying drawing, in winch: ERNST BECK. 

